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library / src / main / java / org / distorted / library / EffectNames.java @ 889cce10

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///////////////////////////////////////////////////////////////////////////////////////////////////
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// Copyright 2016 Leszek Koltunski                                                               //
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//                                                                                               //
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// This file is part of Distorted.                                                               //
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//                                                                                               //
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// Distorted is free software: you can redistribute it and/or modify                             //
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// it under the terms of the GNU General Public License as published by                          //
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// the Free Software Foundation, either version 2 of the License, or                             //
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// (at your option) any later version.                                                           //
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//                                                                                               //
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// Distorted is distributed in the hope that it will be useful,                                  //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of                                //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the                                 //
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// GNU General Public License for more details.                                                  //
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//                                                                                               //
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// You should have received a copy of the GNU General Public License                             //
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// along with Distorted.  If not, see <http://www.gnu.org/licenses/>.                            //
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///////////////////////////////////////////////////////////////////////////////////////////////////
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package org.distorted.library;
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Names of Effects one can add to the DistortedEffects queues.
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 * <p>
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 * Effect's 'Type' is one of the constants defined in {@link EffectTypes}.
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 * </p>
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 * <p>
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 * Effect's 'Uniforms' are a vector of 7 (matrix effects) 12 (vertex) or 8 (fragment) floats, which
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 * together form full information how to compute a given effect.
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 * Typically, some of those values will be Interpolated in CPU (by one of the 'EffectQueueX.compute()'
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 * methods) and the effect of such Interpolation sent to the Shaders.
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 * </p>
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 * <p>
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 * Effect's 'Unity' is such a particular vector of its 'interpolated values' which makes the
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 * effect NULL. For example, if the effect is 'MOVE' by a 3-dimensional vector, then a 'NULL
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 * MOVE' is a MOVE by vector (0,0,0), thus (0,0,0) is the unity of the MOVE effect.
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 * This is used by the EffectQueue classes to decide if the final form of the Effect is NULL - and
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 * thus if it can safely be removed from Effect Queues without affecting the visual in any way.
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 * </p>
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 */
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public enum EffectNames
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  {
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  // EFFECT NAME /////// EFFECT TYPE ////////////// UNITY /////////////// DIM // REGION // CENTER
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  /////////////////////////////////////////////////////////////////////////////////
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  // MATRIX EFFECTS.
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  // Always 7 Uniforms: 4 per-effect interpolated values + 3 dimensional center.
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 /**
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   * Rotate the whole Object around a center point (in angle-axis notation).
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   * <p>
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   * Uniforms: (angle,axisX,axisY,axisZ,centerX,centerY,centerZ)
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   * <p>
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   * Unity: angle==0
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   */
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  ROTATE           ( EffectTypes.MATRIX  ,   new float[] {0.0f}           , 4, false, true ),
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 /**
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   * Rotate the whole Object around a center point (in quaternion notation).
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   * <p>
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   * Uniforms: (quatX,quatY,quatZ,quatW,centerX,centerY,centerZ)
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   * <p>
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   * Unity: (quatX,quatY,quatZ) = (0,0,0)
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   */
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  QUATERNION       ( EffectTypes.MATRIX  ,   new float[] {0.0f,0.0f,0.0f} , 4, false, true ),
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 /**
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   * Move the whole Object by a vector.
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   * <p>
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   * Uniforms: (vectorX,vectorY,vectorZ,UNUSED,UNUSED,UNUSED,UNUSED)
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   * <p>
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   * Unity: (vectorX,vectorY,vectorZ) = (0,0,0)
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   */
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  MOVE             ( EffectTypes.MATRIX  ,   new float[] {0.0f,0.0f,0.0f} , 3, false, false ),
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 /**
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   * Scale the whole Object independently in all 3 dimensions.
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   * <p>
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   * Uniforms: (scaleX,scaleY,scaleZ,UNUSED,UNUSED,UNUSED,UNUSED)
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   * <p>
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   * Unity: (scaleX,scaleY,scaleZ) = (1,1,1)
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   */
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  SCALE            ( EffectTypes.MATRIX  ,   new float[] {1.0f,1.0f,1.0f} , 3, false, false ),
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 /**
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   * Shear the whole Object in 3 dimensions around a center point.
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   * <p>
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   * Uniforms: (shearX,shearY,shearZ,UNUSED,centerX,centerY,centerZ)
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   * <p>
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   * Unity:  (shearX,shearY,shearZ) = (0,0,0)
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   */
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  SHEAR            ( EffectTypes.MATRIX  ,   new float[] {0.0f,0.0f,0.0f} , 3, false, true ),
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  // add new Matrix effects here...
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 /////////////////////////////////////////////////////////////////////////////////
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 // VERTEX EFFECTS
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 // Always 12 Uniforms: 6 per-effect interpolated values, 2-dimensional center of
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 // the effect, 4-dimensional Region
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 /**
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   * Apply a 3D vector of force to area around a point on the surface of the Object.
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   * <p>
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   * Uniforms: (forceX,forceY,forceZ,UNUSED,
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   *            UNUSED,centerX,centerY,centerZ,
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   *            regionX,regionY,regionRX,regionRY)
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   * <p>
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   * Unity: (forceX,forceY,forceZ) = (0,0,0)
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   */
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  DISTORT          ( EffectTypes.VERTEX  ,   new float[] {0.0f,0.0f,0.0f} , 3, true, true ),
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 /**
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   * Deform the whole Object by applying a 3D vector of force to a center point.
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   * <p>
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   * Uniforms: (forceX,forceY,forceZ,UNUSED,
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   *            UNUSED,centerX,centerY,centerZ,
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   *            regionX,regionY,regionRX,regionRY)
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   * <p>
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   * Unity: (forceX,forceY,forceZ) = (0,0,0)
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   */
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  DEFORM           ( EffectTypes.VERTEX  ,   new float[] {0.0f,0.0f,0.0f} , 3, true, true ),
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 /**
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   * Pull (or push away) all points around a center point to (from) it.
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   * <p>
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   * Uniforms: (sinkFactor,UNUSED,UNUSED,UNUSED,
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   *            UNUSED,centerX,centerY,centerZ,
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   *            regionX,regionY,regionRX,regionRY)
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   * <p>
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   * Unity: sinkFactor = 1
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   */
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  SINK             ( EffectTypes.VERTEX  ,   new float[] {1.0f}           , 1, true, true ),
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  /**
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   * Pull (or push away) all points around a line to (from) it.
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   * <p>
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   * Uniforms: (pinchFactor,lineAngle,UNUSED,UNUSED,
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   *            UNUSED,centerX,centerY,centerZ,
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   *            regionX,regionY,regionRX,regionRY)
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   * <p>
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   * Unity: sinkFactor = 1
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   */
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  PINCH            ( EffectTypes.VERTEX  ,   new float[] {1.0f}           , 2, true, true ),
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 /**
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   * Smoothly rotate a limited area around a center point.
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   * <p>
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   * Uniforms: (swirlAngle,UNUSED,UNUSED,UNUSED,
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   *            UNUSED, centerX,centerY,centerZ,
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   *            regionX,regionY,regionRX,regionRY)
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   * <p>
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   * Unity: swirlAngle = 0
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   */
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  SWIRL            ( EffectTypes.VERTEX  ,   new float[] {0.0f}           , 1, true, true ),
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  /**
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   * Directional sinusoidal wave effect. The direction of the wave is given by the 'angle'
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   * parameters. Details: {@link DistortedEffects#wave(org.distorted.library.type.Data5D,org.distorted.library.type.Data3D)}
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   * <p>
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   * Uniforms: (amplitude,length,phase,angleAlpha,
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   *            angleBeta, centerX,centerY,centerZ,
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   *            regionX,regionY,regionRX,regionRY)
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   * <p>
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   * Unity: amplitude  = 0
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   */
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  WAVE             ( EffectTypes.VERTEX  ,   new float[] {0.0f}           , 5, true, true ),
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  // add new Vertex Effects here...
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 /////////////////////////////////////////////////////////////////////////////////
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 // FRAGMENT EFFECTS
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 // Always 8 Uniforms: 4-per effect interpolated values, 4 dimensional Region.
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 /**
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   * Make a given Region (partially) transparent.
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   * <p>
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   * Uniforms: (transparencyLevel,UNUSED,UNUSED,UNUSED, regionX, regionY, regionRX, regionRY)
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   * <p>
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   * Unity: transparencyLevel = 1
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   */
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  ALPHA            ( EffectTypes.FRAGMENT,   new float[] {1.0f}           , 1, true, false ),
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 /**
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   * Make a given Region (partially) transparent.
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   * Effect smoothly fades towards the edges of the region.
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   * <p>
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   * Uniforms: (transparencyLevel,UNUSED,UNUSED,UNUSED, regionX, regionY, regionRX, regionRY)
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   * Unity: transparencyLevel = 1
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   */
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  SMOOTH_ALPHA     ( EffectTypes.FRAGMENT,   new float[] {1.0f}           , 1, true, false ),
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 /**
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   * Blend current color in the texture with a given color.
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   * <p>
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   * Uniforms: (blendLevel,colorR,colorG,colorB, regionX, regionY, regionRX, regionRY)
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   * <p>
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   * Unity: blendLevel = 0
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   */
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  CHROMA           ( EffectTypes.FRAGMENT,   new float[] {0.0f}           , 4, true, false ),
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 /**
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   * Smoothly blend current color in the texture with a given color.
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   * <p>
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   * Uniforms: (blendLevel,colorR,colorG,colorB, regionX, regionY, regionRX, regionRY)
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   * Unity: blendLevel = 0
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   */
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  SMOOTH_CHROMA    ( EffectTypes.FRAGMENT,   new float[] {0.0f}           , 4, true, false ),
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 /**
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   * Change brightness level of a given Region.
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   * <p>
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   * Uniforms: (brightnessLevel,UNUSED,UNUSED,UNUSED, regionX, regionY, regionRX, regionRY)
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   * <p>
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   * Unity: brightnessLevel = 1
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   */
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  BRIGHTNESS       ( EffectTypes.FRAGMENT,   new float[] {1.0f}           , 1, true, false ),
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 /**
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   * Smoothly change brightness level of a given Region.
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   * <p>
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   * Uniforms: (brightnessLevel,UNUSED,UNUSED,UNUSED, regionX, regionY, regionRX, regionRY)
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   * <p>
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   * Unity: brightnessLevel = 1
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   */
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  SMOOTH_BRIGHTNESS( EffectTypes.FRAGMENT,   new float[] {1.0f}           , 1, true, false ),
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 /**
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   * Change saturation level of a given Region.
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   * <p>
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   * Uniforms: (saturationLevel,UNUSED,UNUSED,UNUSED, regionX, regionY, regionRX, regionRY)
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   * <p>
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   * Unity: saturationLevel = 1
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   */
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  SATURATION       ( EffectTypes.FRAGMENT,   new float[] {1.0f}           , 1, true, false ),
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 /**
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   * Smoothly change saturation level of a given Region.
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   * <p>
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   * Uniforms: (saturationLevel,UNUSED,UNUSED,UNUSED, regionX, regionY, regionRX, regionRY)
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   * <p>
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   * Unity: saturationLevel = 1
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   */
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  SMOOTH_SATURATION( EffectTypes.FRAGMENT,   new float[] {1.0f}           , 1, true, false ),
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 /**
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   * Change contrast level of a given Region.
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   * <p>
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   * Uniforms: (contrastLevel,UNUSED,UNUSED,UNUSED, regionX, regionY, regionRX, regionRY)
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   * <p>
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   * Unity: contrastLevel = 1
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   */
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  CONTRAST         ( EffectTypes.FRAGMENT,   new float[] {1.0f}           , 1, true, false ),
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 /**
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   * Smoothly change contrast level of a given Region.
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   * <p>
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   * Uniforms: (contrastLevel,UNUSED,UNUSED,UNUSED, regionX, regionY, regionRX, regionRY)
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   * <p>
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   * Unity: contrastLevel = 1
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   */
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  SMOOTH_CONTRAST  ( EffectTypes.FRAGMENT,   new float[] {1.0f}           , 1, true, false ),
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  // add new Fragment effects here...
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  /////////////////////////////////////////////////////////////////////////////////
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  // POSTPROCESSING EFFECTS.
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  // Always 4 Uniforms: 4 per-effect interpolated values.
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 /**
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   * Blur the area around the center.
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   * <p>
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   * Uniforms: (radius,UNUSED,UNUSED,UNUSED)
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   * <p>
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   * Unity: radius = 0
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   */
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  BLUR             ( EffectTypes.POSTPROCESS,new float[] {0.0f}          , 1, false, false );
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  private static final int MAXDIM = 4;  // maximum supported dimension of an effect  
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  private final EffectTypes type;
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  private final float[] unity;
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  private final int dimension;
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  private final boolean supportsR;
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  private final boolean supportsC;
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  private static final float[] unities;
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  private static final int[] unityDimensions;
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  private static final int[] dimensions;
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  private static final boolean[] supportsRegion;
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  private static final boolean[] supportsCenter;
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  private static final EffectNames[] names;
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  static
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    {
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    int len = values().length;
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    int i=0;
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    unityDimensions = new int[len];
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    dimensions      = new int[len];
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    supportsRegion  = new boolean[len];
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    supportsCenter  = new boolean[len];
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    unities         = new float[MAXDIM*len];
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    names           = new EffectNames[len];
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    for(EffectNames name: EffectNames.values())
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      {
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      unityDimensions[i] = (name.unity==null ? 0 : name.unity.length);
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      dimensions[i]      = name.dimension;
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      supportsRegion[i]  = name.supportsR;
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      supportsCenter[i]  = name.supportsC;
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      names[i]           = name;
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      switch(unityDimensions[i])
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        {
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        case 4: unities[MAXDIM*i+3] = name.unity[3];
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        case 3: unities[MAXDIM*i+2] = name.unity[2];
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        case 2: unities[MAXDIM*i+1] = name.unity[1];
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        case 1: unities[MAXDIM*i  ] = name.unity[0];
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        case 0: break;
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        }
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      i++;  
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      }
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  EffectNames(EffectTypes type, float[] unity, int dimension, boolean supportsR, boolean supportsC)
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    {
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    this.type      = type;
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    this.unity     = unity;
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    this.dimension = dimension;
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    this.supportsR = supportsR;
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    this.supportsC = supportsC;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  static EffectTypes getType(int ordinal)
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    {
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    return names[ordinal].type;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  static EffectNames getName(int ordinal)
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    {
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    return names[ordinal];
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  static void fillWithUnities(int ordinal, float[] buffer, int index)
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    {
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    switch(unityDimensions[ordinal])
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      {
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      case 0: break;
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      case 1: buffer[index  ]=unities[MAXDIM*ordinal  ];
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              break;
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      case 2: buffer[index  ]=unities[MAXDIM*ordinal  ];
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              buffer[index+1]=unities[MAXDIM*ordinal+1];
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              break;
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      case 3: buffer[index  ]=unities[MAXDIM*ordinal  ];
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              buffer[index+1]=unities[MAXDIM*ordinal+1]; 
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              buffer[index+2]=unities[MAXDIM*ordinal+2];
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              break;
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      case 4: buffer[index  ]=unities[MAXDIM*ordinal  ];
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              buffer[index+1]=unities[MAXDIM*ordinal+1]; 
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              buffer[index+2]=unities[MAXDIM*ordinal+2];
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              buffer[index+3]=unities[MAXDIM*ordinal+3];
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              break;
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      }  
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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  static boolean isUnity(int ordinal, float[] buffer, int index)
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    {
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    switch(unityDimensions[ordinal])
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      {
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      case 0: return true;
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      case 1: return buffer[index  ]==unities[MAXDIM*ordinal  ];
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      case 2: return buffer[index  ]==unities[MAXDIM*ordinal  ] &&
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                     buffer[index+1]==unities[MAXDIM*ordinal+1];
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      case 3: return buffer[index  ]==unities[MAXDIM*ordinal  ] &&
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                     buffer[index+1]==unities[MAXDIM*ordinal+1] && 
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                     buffer[index+2]==unities[MAXDIM*ordinal+2];
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      case 4: return buffer[index  ]==unities[MAXDIM*ordinal  ] &&
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                     buffer[index+1]==unities[MAXDIM*ordinal+1] && 
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                     buffer[index+2]==unities[MAXDIM*ordinal+2] &&
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                     buffer[index+3]==unities[MAXDIM*ordinal+3];
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      }
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    return false;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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// PUBLIC API
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Returns the Type of an individual Effect. For example, EffectNames.ROTATION.getType() will
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 * return EffectTypes.MATRIX.
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 * @return type of the effect.
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 */
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  public EffectTypes getType()
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    {
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    return type;
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    }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Returns the dimension of an Effect (in other words, the number of interpolated values).
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 * @return dimension of the Effect.
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 */
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  public int getDimension() { return dimensions[ordinal()]; }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Do we support being masked by a Region?
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 * @return true if the Effect supports being masked with a Region.
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 */
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  public boolean supportsRegion() { return supportsRegion[ordinal()]; }
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///////////////////////////////////////////////////////////////////////////////////////////////////
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/**
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 * Does this Effect have a center?
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 * @return true if the Effect has a center.
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 */
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  public boolean supportsCenter() { return supportsCenter[ordinal()]; }
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  }